Analysis of nanoparticle delivery to tumours pubmed

Analysis of nanoparticle delivery to tumours. Nat Rev Mater. 2016; 1: 16014. Crossref; Scopus (1656) ... Data for this review were identified by searches of PubMed, and references from relevant articles using the search terms "nanoparticles", "intravital imaging", ...1 day ago · Living therapeutics approaches that exploit mesenchymal stem cells (MSCs) as nanomedicine carriers are highly attractive due to MSCs native tropism to… PBAE nanoparticle hydrodynamic diameter was determined by nanoparticle tracking analysis (NTA) using a Nanosight NS500 with a 532 nm laser at 25°C (Nanosight, Amesbury, UK). Three independent samples were prepared successively for each nanoparticle formulation at a DNA concentration of 0.005 µg/µl by mixing equal volumes of DNA and polymer ...

Jan 09, 2018 · Albumin-bound formulation for paclitaxel based on nano-drug delivery system, nab-paclitaxel, has the advantage of passive target for tumor due to EPR effect. Now, deliberate modifications of ligand or antibody to the surface of nanoparticles were conducted to achieve specific targeting to the corresponding receptor on tumor cells ( 22 , 36 ). Numerous studies have engineered nanoparticles with different physicochemical properties to enhance the delivery efficiency to solid tumors, yet the mean and median delivery efficiencies are only 1.48% and 0.70% of the injected dose (%ID), respectively, according to a study using a nonphysiologically based modeling approach based on published data from 2005 to 2015. In this study, we used ...Modulation of microRNAs (miRNAs), endogenous regulators of gene expression, is a promising strategy for tackling inflammatory lung diseases. In this proof-of-concept study, we tested delivery of miR-17 to bronchial epithelial cells (BECs) using nebulised lipid–polymer hybrid nanoparticles (LPNs). The primary aim was to reduce the induced secretion of miR-17's target, i.e. the pro ...

In solid tumors, increasing drug penetration promotes their regression and improves the therapeutic index of compounds. However, the heterogeneous extracellular matrix (ECM) acts a steric and interaction barrier that hinders effective transport of therapeutics, including nanomedicines. Specifically, the interactions between the ECM and surface physicochemical properties of nanomedicines (e.g ... Jul 23, 2019 · Certain tumor types such as glioblastoma multiforme and pancreatic tumor are known to be poorly permeable, making them less accessible for nanoparticle drug delivery. Evidence indicates that small and long-circulating nanoparticles are ideal for taking advantage of the enhanced permeability and retention effect, even in such intractable tumor models. Under these circumstances, novel and effective lymphatic targeted drug delivery systems have been explored to improve the specificity of anticancer drugs to tumor cells in lymph nodes. In this review, we summarize the principles of lymphatic targeted drug delivery and discuss recent advances in the development of lymphatic targeted carriers. This analysis can be applied to optimize nanoparticle delivery, and to determine the time-points at which photothermal or other therapeutic interventions would be most effective. Specifically, the sparsity of the AuNR distribution within the tumor at each time point was quantified from the spatial frequency content of each 2D PTOCT projection ... In vitro evaluation using 2-D and 3-D cell models showed that phenylboronic acid-decorated nanoparticles were more easily internalized by tumor cells compared to non-decorated chitosan nanoparticles, and could deliver more drug into tumor cells due to the active targeting effect of boronic acid group. Studies have shown that so-called targeting moieties, i.e., antibodies or ligands, on the nanoparticle surface do not really improve delivery to target tumors. Targeted drug delivery to tumor sites is associated with highly complex biological, mechanical, chemical and transport phenomena, of which characteristics vary spatiotemporally.

Tumor necrosis factor-α (TNF-α) is a potent cytokine with anticancer efficacy that can significantly enhance hyperthermic injury. However, TNF-α is systemically toxic, thereby creating a need for its selective tumor delivery. We used a newly developed nanoparticle delivery system consisting of 33-nm polyethylene glycol–coated colloidal gold nanoparticles (PT-cAu-TNF-α) with incorporated ... Nov 27, 2019 · As nanoparticles are often easily internalized by macrophages, TLR7/8 agonist-loaded nanoparticles were delivered to TAMs efficiently altering the polarization of TAMs, which promoted antitumor immune responses . Despite these observations, how to drive reprogramming with high potency is a challenge. Apr 29, 2017 · In 2016, Wilhelm et al. 10 surveyed the literature from the past 10 years on nanoparticle-based drug carriers; their review showed that only 0.7% (median) of the administered nanoparticle dose was delivered to a solid tumor. This low delivery efficiency negatively affects the translation of nanotechnology to clinical applications.

Analysis of nanoparticle delivery to tumours Targeting nanoparticles to malignant tissues for improved diagnosis and therapy is a popular concept. However, after surveying the literature from the past 10 years, only 0.7% (median) of the administered nanoparticle dose is found to be delivered to a solid tumour. Targeting nanoparticles to malignant tissues for improved diagnosis and therapy is a popular concept. However, after surveying the literature from the past 10 years, only 0.7% (median) of the administered nanoparticle dose is found to be delivered to a solid tumour. This has negative consequences on the translation of nanotechnology for human use with respect to manufacturing, cost, toxicity, and imaging and therapeutic efficacy. Jun 23, 2016 · Dual assembly nanoparticles Jun 23, 2016 - Board of Regents, The University of Texas System Disclosed are nanoparticles for the delivery of a therapeutic agent or a diagnostic agent to a subject that include a chitosan and a polyphosphate, wherein the chitosan nanoparticles are coated with polylactic acid. Aug 18, 2020 · Tumor-associated macrophages (TAMs) are abundant in tumor microenvironments and are predominantly immunosuppressive. The ratio between immunosuppressive M2 TAMs and proinflammatory M1 TAMs correlates with worse outcomes for many cancers, including ovarian cancer. TAMs are potential targets for immunotherapy, and here we show that, when relatively large (>100-nm) anionic nanoparticles are ... Docetaxel-conjugate nanoparticle, CRXL301, was designed to enhance drug delivery to tumor tissue up to 10 times more docetaxel into tumors than an equivalent milligram dose of commercially available docetaxel. This thus increases the activity and lowers the toxicity profile in patient [24,25]. The goal of this study was to enhance gene delivery and tumor cell transfection in vivo by using a combination of ultrasonication with complex nanoparticles consisting of two types of ...

Apr 24, 2018 · Biotinylated Bilirubin Nanoparticles as a Tumor Microenvironment‐Responsive Drug Delivery System for Targeted Cancer Therapy Yonghyun Lee KAIST Institute for the BioCentury, Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak‐ro, Daejeon, 34141 Republic of Korea Now Free Online - The Consumer Version of the Merck Manuals (known as the MSD Manuals outside of US & Canada) is the standard in home medical reference - since 1899. PBAE nanoparticle hydrodynamic diameter was determined by nanoparticle tracking analysis (NTA) using a Nanosight NS500 with a 532 nm laser at 25°C (Nanosight, Amesbury, UK). Three independent samples were prepared successively for each nanoparticle formulation at a DNA concentration of 0.005 µg/µl by mixing equal volumes of DNA and polymer ... Sep 29, 2020 · Neutrophil-based drug delivery system possesses excellent advantages in targeting at tumour because neutrophils are easily recruited by chemotactic factor in tumor microenvironment. Herein, we developed a novel tactic of multistage neutrophils-based nanoparticle delivery system for promoting photothermal therapy (PTT) of lung cancer. Au nanorod (AuNR) was successfully modified with bovine ... Here, a multistage delivery nanoparticle (MDNP) that can achieve tumor‐targeted delivery of CRISPR/dCas9 systems and restore endogenous microRNA (miRNA) expression in vivo is described.Jan 09, 2018 · Albumin-bound formulation for paclitaxel based on nano-drug delivery system, nab-paclitaxel, has the advantage of passive target for tumor due to EPR effect. Now, deliberate modifications of ligand or antibody to the surface of nanoparticles were conducted to achieve specific targeting to the corresponding receptor on tumor cells ( 22 , 36 ).

Nov 15, 2018 · We show that liposomal nanoparticle-delivered cGAMP (cGAMP-NP) activates STING more effectively than soluble cGAMP. These particles induce innate and adaptive host immune responses to preexisting tumors in both orthotopic and genetically engineered models of basal-like TNBC. cGAMP-NPs also reduce melanoma tumor load, with limited responsivity to anti–PD-L1.